Roof structure



ROOF STRUCTURE Filed Sept. 12, 1931 INI/ENTOR, Wm j 5;

#f5 ATTORNEY Patented Mar. 27, 1934 UNITED STATES PATENT OFFICE ROOF STRUCTURE Application September 12, 1931, Serial No. 562,496

1 Claim.

My invention relates to roof construction, and especially to a roof formed of tile in combination with flexible sheet material.

It is one of the objects of my invention to provide a roof structure in which tile are applied over layers of prepared roofing and securely held in position without puncturing the exposed surface of the roofing sheets.

Another object of my invention is the provision of improved means for anchoring tile upon a roo-f deck overlaid with strips of flexible roong.

The invention possesses other objects and features of advantage, some of which with the foregoing, will be set forth in the following description of my invention. It is to be understood that I do not limit myself to this disclosure of species of my invention, as I may adopt variant embodiments thereof within the scope of the claim.

Referring to the drawing:

Figure l is a plan view of one form of the clip forming part of my roo-f structure.

Figure 2 is a plan view of a Variant form of clip.

Figure 3 is a side elevational view of the clip of Figure 2` Figure 4 is a fragmentary plan view showing a roof structure, embodying my invention.

Figure 5 is a fragmentary enlarged sectional View of the structure of Figure 4. The plane of section is indicated by the line 5 5 of Figure 4.

Stated broadly, the roof structure of my invention comprises overlapped strips of covering material secured to a roof deck in such a manner lthat the exposed or weather surface of the strips is unpunctured. This is accomplished by a clip which is secured to the deck within the lap; the means for securing the clip to the deck also serving to attach the strip thereto. The clip is also designed to form the anchor for the tie wires by which tiles are held in place over the covering strips.

In greater detail, the clip used in the practice of my invention, and as illustrated in its preferred form in Figure l, comprises a series of connected zigzagged strips or plates 2. Holes 3 and 4 are preferably pierced in the clip adjacent the juncture of the strips for the purpose of providing means for attaching the clip to the base, and for securing other objects to the clip. The modified form of clip, shown in Figure 2, is preferably constructed of a continuous strip or bar, the loops 6 and '7 corresponding to the holes 3 and 4 of the preferred form; the bar 8 connecting the loops serving the same purpose as the strips or plates 2 of Figure 1.

The clips may be constructed of any corrosion resistant material; non-ferrous metals being preferable although a heavily galvanized iron has been found to be satisfactory. The pattern illustrated in Figure 1 adapts itself particularly Well to economical production since it may be stamped from sheet material without wastage. Another feature, pointing to the desirability of this pattern, lies in the fact that, due to the nature of construction of the clip, the holes, providing the attachment means are always maintained in proper spacing and alinement. The clip of Figure 2 while not possessing all of the desirable features of the preferred form of clip has the advantage over the former of permitting adjustment of the spacing of the attachment loops. This feature has been found to be of considerable value especially when, due to warpage or other non-uniformity, the spacing of the tiling does not match that of the attachment clip.

Figures 4 and 5 show a sheathing structure embodying my invention, and comprising a layer of sheet roofing material and an overlying layer of roofing tile. A strip 9 of covering material, such as saturated felt, prepared roofing or shingles, is laid on the base or deck illustrated as the sheathing 11 of a roof. A series of clips are applied adjacent the upper edge 12 of the covering strip and nails 13 serve to secure the clip and the strip to the deck. Adjoining clips are preferably secured by means of nails 14 driven into the deck thru the registered end holes 3 of the clips. Tiles 16 may be secured to the clips by bending upwardly the portions of the clips adjacent the holes 4 to form tabs 17. Wires 18 are used to connect the clips and the tiles in the usually employed manner.

A second strip 19 of covering material is applied to the deck so that its lower edge 21 overlaps the upper edge l2 of the next lower strip 9. This overlap may be varied to suit conditions although it has been found that a lap of from 3 to 4 inches is quite adequate. 1t will be seen that the lap formed by the overlying sheet 19 completely covers the attachment means of the sheet below it so that the possibility of water seepage from the surface of the covering material to the point where the material is punctured by the nails 13-14 is extremely remote. Biturninous or other cement may be applied to seal the lap, although the use of adhesive or sealing materials is not required with this roofing structure as the dry lap, on a sloped roof, is capable of preventing passage of moisture therethru.

Attachment of the strip 19 is effected by nailed clips adjacent its upper edge in the same manner used in securing the strip 9; and tiles 22 are attached to the clips by the wires 23 applied similarly to the wires 18 in fastening the tiles 16. The application of clip-secured strips of covering material and tiles is proceeded with until the entire roof area is covered. Of course if desired, the deck may first be completely covered by the strips, and then the tiles laid. The lower raised ends of the clip provide a guide for the application of the next strip of flexible material, as well as a convenient anchorage for the tie wires 18 for the tiles.

From the foregoing description of my invention it will be evident that an easily applied and efective water-tight roofing structure is provided which isolates from the elements all paths by means of which moisture could penetrate to the sheathing. It will be evident also that the separate units of the roong structure, i. e., the bottom or overlapped strip layer and the top or tile layer form two distinct and independent protective coverings for the roof.

It is possible that, due to accident, several of the tile may become cracked so as to permit water to pass through them. In the absence of the tight inner layer, this would be liable to cause serious damage to the interior of the building, and entail a tedious Search of the entire roof area to locate the defective tiles. The inner layer of the structure of my invention affords means for providing a secondary protection which is impregnable to the passage of moisture should the primary or tile layer be rendered defective.

I claim:

A roofing structure for application upon a roof deck, comprising sheets of material laid on the deck with the lower edge of each sheet overlapping the upper edge of the next adjacent lower sheet, metallic strips connected in zigzag formation disposed in the lap with the lower angles exposed, means securing the upper angles to the deck, tiles arranged over the sheets, and means for securing the tiles to the exposed angles.

JOHN I. HOLDER. 

